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Analysis on Environment Impact of Chongqing Kaixian Blowout

XU Long-jun,Prof. WU Jiang LI Hong-qiang (Key Laboratory for the Exploitation of South-west Resources & Environmental Disaster Control Engineering, Ministry of Education) Classification and code of disciplines: 620.5020  
In Dec. 23 blowout accident in Kaixian, a huge amount of hydrogen sulfide-containing natural gas burst into ambient environment. 28 villages of 4 towns surrounding Gaoqiao town were polluted by hydrogen sulfide in different extent. The impact of this accident on atmosphere, water and soil environment of this area was analyzed according to emission of pollutant and local climate and hydrological conditions. The results showed that the area within 5?000 m to the leeward of the pollution source and the area within 500 m perpendicular to the leeward, the ambient atmosphere was polluted by hydrogen sulfide in different extent, and reached maximum at 500 m to 1?500 m area. Because of the sedimentation of hydrogen sulfide, the water and soil environment in this area was also polluted in different extent.
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